Make irreversible field default to false in filters

CHANGELOG.md

@@ -92,6 +92,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Mastodon API: Handling of `reblogs` in `/api/v1/accounts/:id/follow`
 - Mastodon API: Correct `reblogged`, `favourited`, and `bookmarked` values in the reblog status JSON
 - Mastodon API: Exposing default scope of the user to anyone
+- Mastodon API: Make `irreversible` field default to `false` [`POST /api/v1/filters`]
 
 ## [0.9.9999] - 2019-04-05
 ### Security

lib/pleroma/web/mastodon_api/mastodon_api_controller.ex

@@ -1536,7 +1536,7 @@ def create_filter(
       user_id: user.id,
       phrase: phrase,
       context: context,
-      hide: Map.get(params, "irreversible", nil),
+      hide: Map.get(params, "irreversible", false),
       whole_word: Map.get(params, "boolean", true)
       # expires_at
     }

priv/repo/migrations/20190513175809_change_hide_column_in_filter_table.exs

+defmodule Pleroma.Repo.Migrations.ChangeHideColumnInFilterTable do
+  use Ecto.Migration
+
+  def change do
+    alter table(:filters) do
+      modify :hide, :boolean, default: false
+    end
+  end
+end

test/web/mastodon_api/mastodon_api_controller_test.exs

@@ -572,6 +572,7 @@ test "creating a filter", %{conn: conn} do
       assert response = json_response(conn, 200)
       assert response["phrase"] == filter.phrase
       assert response["context"] == filter.context
+      assert response["irreversible"] == false
       assert response["id"] != nil
       assert response["id"] != ""
     end